Semaglutide Therapy for Alcohol Reduction - Tulsa (STAR-T)
![]() |
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT05891587 |
Recruitment Status :
Recruiting
First Posted : June 7, 2023
Last Update Posted : November 7, 2023
|
- Study Details
- Tabular View
- No Results Posted
- Disclaimer
- How to Read a Study Record
Condition or disease | Intervention/treatment | Phase |
---|---|---|
Alcohol Use Disorder | Drug: Semaglutide Drug: Placebo | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 80 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Intervention Model Description: | Randomized, between-subject, double-blind, and placebo-controlled. |
Masking: | Triple (Participant, Investigator, Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | Semaglutide Therapy for Alcohol Reduction - Tulsa |
Actual Study Start Date : | July 7, 2023 |
Estimated Primary Completion Date : | July 2025 |
Estimated Study Completion Date : | December 2025 |

Arm | Intervention/treatment |
---|---|
Experimental: Semaglutide
Participants will receive subcutaneous injections of semaglutide in escalating doses (.25mg to 1.0mg) over the course of 12 weeks.
|
Drug: Semaglutide
Semaglutide pen injector |
Placebo Comparator: Placebo
Participants will receive subcutaneous injections of a placebo saline solution over the course of 12 weeks.
|
Drug: Placebo
Saline solution |
- Change in alcohol drinking [ Time Frame: Baseline (Week 1) to post-medication (Week 13 ]Difference in number of standard alcoholic drinks consumed/week (Drinks Per Week, DPW)
- Change in heavy drinking days [ Time Frame: Baseline (Week 1) to post-medication (Week 13) ]Difference in number of heavy drinking days as reported in Alcohol TLFB
- Change in drinks per drinking days [ Time Frame: Baseline (Week 1) to post-medication (Week 13) ]Difference in number of drinks per drinking days as reported in Alcohol TLFB
- Safety and tolerability of semaglutide in individuals with alcohol use disorder (AUD) [ Time Frame: Baseline (Week 1) to post-medication (Week 13) ]Number and grade of adverse events in individuals with AUD who receive semaglutide or placebo
- Reduction and/or changes in food choices in a virtual reality buffet-like laboratory [ Time Frame: Baseline (Week 1) to post-medication (Week 13) ]Difference in the macronutrient content selected in the virtual reality buffet
- Change in blood phosphatidylethanol (PEth) levels as a biomarker of alcohol use [ Time Frame: Baseline (Week 1) to post-medication (Week 13) ]Difference in blood PEth levels
- Changes in brain activity in response to alcohol cues during fMRI cue reactivity task [ Time Frame: Baseline (Week 1) to post-medication (Week 13) ]Group differences in fMRI blood oxygenation level dependent (BOLD) signal within reward neurocircuitry in response to alcohol and nonalcoholic beverage stimuli
- Changes in brain activity during an fMRI interoceptive attention task [ Time Frame: Baseline (Week 1) to post-medication (Week 13) ]Group differences in fMRI blood oxygenation level dependent (BOLD) signal within interoceptive brain regions during an interoceptive attention task.
- Changes in brain activity during an alcohol-related Go/No-Go fNIRS task [ Time Frame: Baseline (Week 1) to post-medication (Week 13) ]Difference in activity of inhibitory brain regions during an alcohol-related Go/No-Go fNIRS task.

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Ability to provide informed consent before any trial-related activities
- Male or female individuals who are at least 18 years old
- Alcohol Use Disorder (minimum 2 symptoms on a validated diagnostic tool, e.g., DSM-5 Checklist for Alcohol Use Disorder, the Mini-International Neuropsychiatric Interview (MINI) or the Structured Clinical Interview for DSM Disorders (SCID))
- Self-reported drinking, according to alcohol TimeLine Follow-Back (TLFB), of > 7 drinks per week for females or > 14 drinks per week for males during the 28-day period prior to screening + at least four days with > 3 drinks for females or > 4 drinks for males during the 28-day period prior to screening.
- Most recent Clinical Institute Withdrawal Assessment for Alcohol - revised (CIWA-Ar) score is ≤ 10
- Able to speak, read, write, and understand English
- Normal or corrected-to-normal (e.g., wearing glasses or contacts) vision and normal or corrected-to-normal (e.g., with the use of a hearing aid) hearing
- Female participants must be postmenopausal for at least one year, surgically sterile, or practicing a highly effective method of birth control before entry and throughout the study and must have a negative urine pregnancy test at each visit. Examples of birth control methods include (but are not limited to) oral contraceptives or contraceptive implants, barrier methods such as diaphragms with contraceptive jelly, cervical caps with contraceptive jelly, condoms, intrauterine devices, a partner with a vasectomy, or abstinence from intercourse.
Exclusion Criteria:
- BMI < 25 kg/m2 or BMI ≥ 50 kg/m2
- Evidence of malnutrition as determined by the Nutrition Risk Screening 2002 (NRS-2002)
- Most recent blood tests: creatinine ≥ 2 mg/dL, eGFR ≤ 60 mL/min/1.73 m2, triglycerides > 500 mg/dl, ALP > 4x the upper normal limit, abnormal blood lipase levels
- Present diagnosis of diabetes or blood hemoglobin A1c (HbA1c) ≥ 6.5 %
- Current use of the following medications with glucose lowering properties: GLP-1 analogues, sulfonylurea, insulin, metformin, thiazolidinediones (TZD), dipeptidyl peptidase-4 (DPP-IV) inhibitors, sodium-glucose cotransporter-2 (SGLT-2) inhibitors
- Current or prior use of semaglutide (Ozempic or Wegovy) or tirzepatide (Mounjaro).
- Use of weight-lowering/anti-obesity medications within the past 90 days prior to enrollment in the study.
- Current use of FDA-approved pharmacotherapy for AUD (acamprosate, disulfiram, naltrexone), or other medications that are used for AUD treatment including topiramate and bupropion. Due to the half-life of injectable naltrexone, we will exclude participants who have taken vivitrol in the past 30 days.
- Current use of medications with known interactions with semaglutide
- Personal or family history of medullary thyroid carcinoma (MTC) or Multiple Endocrine Neoplasia syndrome type 2 (MEN 2)
- Known history of alcoholic ketoacidosis, pancreatitis (either acute or chronic), pancreatic carcinoma, gallbladder disease, jaundice, Mallory-Weiss syndrome (esophageal tears secondary to vomiting), esophageal varices, cirrhosis
- Known history of gastric bypass surgery
- Known or suspected allergy to semaglutide, any of the product components, or any other GLP-1 analogue
- Known history of suicidal attempts (within the past 24 months) or active suicidal ideation
- Known history of vestibular disorders or clinically significant motion sickness
- Known history of noise-induced hearing loss or tinnitus
- Only for subjects undergoing brain scan: contraindication(s) for brain fMRI
- Unstable cardiovascular conditions (e.g., arrhythmias, clinically significant ECG abnormalities)
- Physical and/or mental health conditions that are clinically unstable, as determined by the study clinicians, including (but not limited to) major depressive disorder or generalized anxiety disorder unstable within the past three months or other psychiatric conditions (e.g., schizophrenia, bipolar disorder) unstable within the past twelve months.
- Current stimulant or opioid use disorder.
- Any other reason or clinical condition that the Investigators judge would interfere with study participation and/or be unsafe for a possible subject

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05891587
Contact: Katie Thompson, LMSW | (405) 860-0069 | kthom58@okstate.edu | |
Contact: William K Simmons, Ph.D. | kyle.simmons@okstate.edu |
United States, Oklahoma | |
OSU Biomedical Imaging Center | Recruiting |
Tulsa, Oklahoma, United States, 74136 | |
Contact: William K Simmons, Ph.D. kyle.simmons@okstate.edu | |
Principal Investigator: William K Simmons, Ph.D. | |
Sub-Investigator: Kelly Dunn, M.D. |
Principal Investigator: | William K Simmons, Ph.D. | Oklahoma State University Center for Health Sciences |
Responsible Party: | Oklahoma State University Center for Health Sciences |
ClinicalTrials.gov Identifier: | NCT05891587 |
Other Study ID Numbers: |
202208 |
First Posted: | June 7, 2023 Key Record Dates |
Last Update Posted: | November 7, 2023 |
Last Verified: | November 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | IPD will be shared with other investigators upon reasonable request. |
Supporting Materials: |
Study Protocol Statistical Analysis Plan (SAP) Informed Consent Form (ICF) Clinical Study Report (CSR) Analytic Code |
Time Frame: | Data will become available following publication of study manuscripts and will be available indefinitely. |
Access Criteria: | Reasonable request from qualified investigator. |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Product Manufactured in and Exported from the U.S.: | No |
Alcohol Ozempic Wegovy Semaglutide |
Addiction Substance Use Alcohol drinking Alcohol-Related Disorders |
Alcoholism Alcohol-Related Disorders Substance-Related Disorders Chemically-Induced Disorders Mental Disorders |